Ring-heating furnace



Feb. 16 1926. 1,573,522

R. REGARs RING HEATING FURNACE Filed Jan. 25., 1924 .:.Y Y.;' -Q

Patented Feb. 16, 1926.

UNITED `STAT ES PATENTl OFFICE..

RIDGEWAY REGARS, OF BURLINGTON, NEW JERSEY, ASSIGNOR TO UNITED STATES CAST IRON PIPE & FOUNDRY PORATION or NEW JERSEY.

COMPANY, OF BURLINGTON, NEW JERSEY, A COR- RING-HEATING FRNACE.

Application filed January v25, 1924. Serial No. 688,427.

drawings, which forni a part thereof.`

' Myinvention relates to a special forni of furnace espccially'designed or heating steel rings or annularfband's such as are commonly used in connection with pipes, the rings being shrunk on the end of the pipe yto reinforce it and to serve other useful purposes.

The object of my invention is to Vprovide a simple and effective furnacefor heating these rings prior to their application to the pipe ends, and thernature of my improvements will be best understood as described in connection with the drawings in which-` Figure l is a sectional elevation ofv my furnace taken Ion the line l-l of Fig. Q,

showing a ring in position withinthe furnace, and in dotted lines a ring locatedrimmediately outside vof the furnace.

Figure 2 is a sectional plan on the line 2-2 of Fig. l, and

Figure 3 is a perspective View of a device used for supporting the ring in the furnace. A indicates the furnace which Vis made up of vertical walls A1 and A2,"distant from each other slightly morefthan the width of the band which it is intended to heat in the furnace. The bottom, back and top of the furnace are made up ofV a flat portion A3, constituting the bottom, a curved portion A4, constituing the back of the furnace, and a straightyportion A5, forming the top of tli-e furnace. These portions may be formed iutegral with one -of the side plates A, foiinstance, as shown in the drawings. The front A of the furnace is open for the full height of the furnace and is provided with a door B, by which it can be partially closed,

A Vnari-ow uprightv leaving openings B:L at the bottom and Bg at the top. C is a track which may conveniently consist of a U beam, as shown, extending into and outside ofthe bottoni of Athe furnace and having at its inner end located within the furnace a device indicated atlD, upon which the ring to be heated rests and which so elevates the ring that the heatin gases can passgradually beneath it, as shown in Fig. 3. This device D is provided with upright walls D1, D1, upon which the ring rests and between which is formed the channel D? through which the gases can pass. E indicates a gas burner which is projected into the opening B? when aring is located in the furnace and ready for heating.

F indicates the ring in position in the fur.

nace. l

In operation, the door B is open and a ring F rolled intov the furnace on the U beam C until. it is supported on the deviceV indicated at D. The door B is then closed.

and the gas vblast introduced throught-he nozzle E into the bottom of the furnace, the burning gases fill the furnace, passing under thering supported on the device D and sweeping up the curved back of the Vfurnace as well as through the space between the door and the ring and finally the gases escape through the opening B2. By this simple device the rings are easily handled and promptly andeifectively heated.

Having now described my invention, what I claini as Vnew and desire to secure by Letters Patent, is: f

steel rings having side walls, a curved rear wall and an lopen front of substantially vthe height of the furnace, in combination with a door formed to partially close the open front of the furnace and leave openings at the .top and bottoni thereof and a ring` supvport located at the vbottom of the furnace shaped as described to hold thekband above thefurnace bottom.

RIDGEWAY encinas.

furnacev ,for heating 

